<h3>有变化检测</h3>
<p>姓名：{{data.name}}，地址：{{data.address}}</p>
<app-ccc [data]="data"></app-ccc>
<button (click)="changeInfo()">可变化</button>
<hr />
<app-ddd [data]="data"></app-ddd>
<hr />
<app-eee [data]="data"></app-eee>
<hr />
<app-fff [data]="data"></app-fff>